Combined lubrication guard and feeder



E. P. DU PONT.

COMBINED. LUBRICATION GUARD AND FEEDER.

APPLICATION HLED ,APR'. 15, 1 920.

136,250. I Patented Feb. 15,1921.

mr/vfss; If v 4rmm/Ex ELEUTHERE PAUL OFFICE.

DU PONT, 0F WILMINGTON, DELAWARE.

COMBINED LUBRICA'ITION GUARD AND FEEDER.

1,eos,25o.

Specification of Letters Patent.

Patented Feb. 15, 1921.

Application filed April 15, 1920. Serial No. 374,009.

To all whom it may concern Be it known that I, Ennn'rnnnn PAUL no PoNT, a citizen of the United States, residing at Wilmington, county of New Castle, and State of Delaware, have invented a new and useful Improvement in Combined Lubrication Guards and Feeders, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, which form a part of this specification.

The object of my invention is to protect oil holes from dust, dirt and foreign suhstances generally and at the same time allow the introduction of oil or grease to the hearings without the necessity of wiping oil' the dust before oiling and without any manipulation other than that which would he required to introduce oil or grease into an unprotected oil hole. The invention is especially applicable, but not limited, to the Oll in of automobile chassis parts.

fl preferred embodiment of my invention is shown in the accompanying drawings, wherein Figure 1 is a, side'view of the two parts of a contrivance embodying my invention.

Fig. 2 is a longitudinal sectional view on a plane at right angles to Fig. 1. Fig. 3 is. a side elevation. of the two parts in closed relation to each other. Fig. 4 is a similar view partly in section. Fig. 5 is a perspective View of one of the parts shown in the the other figures.

The contrivance comprises two parts, namely, a nipple and an oil feeder. The nipple a may be secured" in permanent operative relation -to the hearing, but I prefer to thread one end to allow it to be screwed into the oil hole. The opposite end is pro vided with a conical female opening 7) corn stituting an inlet mouth for the lubricant. n opposite sides of the nipple are two Wings 0, each provided with a pair ofears (I, the two pairs of ears hcing hinged, on a common axis, to the nipple. The free ends of the Wings extend forward beyond the inlet mouth 6 of the nipple. The wings are normally held in a closed position, to form a longitudinally split cover, as shown in Figs. 1 and 2, by meansof'a'sprin-H. Projecting beyond opposite sides of each wing are ms 9.

having a male conical end or tip proper, v, constituting the discharge mouth of the the conical end i of the -luhricant to T e oil tip or feeder comprises a spout 1/ feeder and sides of the spout and extending substantially beyond the discharge mouth 2'. spout will be integral with or connected to a an, pump or gun (not shown) containing the oil or grease to be poured or forced through the nipple.

To supply the lubricant to the oil hole, the feeder h is brought into such position that its axis v axis of the nipple a and 1s then pushed forward in a longitudinal direction. In this movement, the wedges 70 enter hetween the pins f/ and spread the wings (I apart until feeder centers the conical end 71 of the nipple. The feeder and nipple are now positioned to allow the he squirted, pumped or otherwise t'orced, or caused to flow, to the hearing.

The ohvious advantages ot' this arrangement are that the oil holeis normally pro tected against admission of dust, dirt, etc., while the protecting cover is automatically opened by the oil feeder in the process of connecting the oil container with the oil hole. I am aware that it is known to proa pair of wedges is on opposite vide an oil can nozzle with means foropenmg a spring closed (JOVL' of an oil cup, wherein the ahovc functions are performed.

y invention, however, securesadditional advantages. It is unnecessary to wipe off the dust hcfore oiliing because no matter how much dust is ou the cover none will get on the tip of the feeder and none can he carried into the nipple as the feeder mouth is brought into contact with the nipple mouth; the wedges It hciug so far in advance of the tip of the feeder that the Wings of the cover will he widely separated, and thus all parts that can collect dust wiil he pushed away, before the tip of the feeder has heen brought into close proximity to the inlet of the nipple. In the withdrawal movement of the fiici'lcr, the tip oi the feeder is well separated from the inlet of the nipple heforc the wings of the cover are allowed to come together. in fact, hyjneans oflmy invention, one can oil a spring holt that is covered with dust or mud to almost anyextent, "as readily as a clcz'in oil hole, with no loss of'timc or inconvenience, it being only necessary to apply theoil can to he nipple. inject the oil and remove the can." i I [ii-otheradvantage of my contrivance is that, by suitable pressure of the tip against oil hole to an oil the contrivance not only to engageable therewith a conical tioned with its axis the nipple, a substantially tight joint may be formed between them, thereby adapting the use'of freely flowing oil and more or less fluid grease, but also to the so-oalled non-fiuid ,oil or Albany grease or any other lubricant wherein prevention of leakage between the tip and the ni le is desirable or necessary.

aving now fully described my invention, what I claim and desire to protect; by Letters Patent is i 1., A lubricator connection for joining an oil hole to an oil containcr, comprising a'nipple adapted to connect with the oil hole and having an inlet mouth, an oil feeder: having a discharge mouth, and a dust cover normally inclosing said inlet mouth and adapted to be opened in the application of the oil feeder to the nipple and to .close when the oilfeeder is removed from the nipple,

the inlet mouth char of the nipple and the'dis- 0rd a substantially oiltight joint when the two are brought into feeding relation. 2. A lubricator connection for joining an container, comprising a nlpple adapted to connect with the oil'hole, and an. oil feeder, a dust cover normally clos-. ing the nipple against'admission of foreign material and adapted to be opened in' the application of the oil feeder to the nipple and to close when the oil feeder is removedfrom the nipple, the nipple having conical shaped inlet mouth and the feeder having shaped dis charge mouth. K I

3. A lubricatorconnection for joining an oil hole to an oil container, comprising a nipple adapted to connectwith the oil hole, a spring-actuable cover normally closing the inlet, and an oil feeder adapted to be posie in line with the axis of the nipple and adapted when moved parallel to its axis to open the cover against its spring and register with the nipple to establish a closed path of flow for the oil,

4. A lubricator connection for joining an oil hole to an oil container, comprising a screw-threaded nipple adapted to be re movably secured at one end to a screwthreaded oil hole and having an inlet mouth at its other end, an oil feeder having a dis? charge outlet adapted to be moved into substanti-ally oil tight relation with the inlet mouthof the nipple, and a cover for the nipple inlet mouth adapted to be opened in the movement of the feeder into feed relation with the nipple and adapted to close in the movement of withdrawal of the feeder,

the mouth of the e mouth of the oil. feeder being shaped 1 progecting substantially nally of both inlet mouth, a cover for the nipple oonsisting of a plurality of swinging parts normally in closed relation and thus protecting nipple against admission of foreign material, and an oil feeder comprising adischarge mouth adapted to be moved toward a position of registeringwith the inlet mouth of the nipple and a paiiof wedges adapted in such movement to the wings apart and allow the nouth of the feeder to connect let mouth of the nipple.

discharge with the m 6. A lubricator connection for joining an oil hole to an oil nipple adapted to and having an end opening, a pair of springactuated wings in hinged relation with the nipple and on opposite sides and extending beyond its end opening and normally in closed relation, projections on the wings, an oil feeder having a discharge end,-and

container, comprising a wedges on the oil feeder adapted, in the movement of the feeder toward the nipple,

to engage said wings and spread them apart.

. A lubricatcr connection for joining an oil hole toan oil container, comprising a nipple adapted to connect with an oil hole and having a conical end openin ,a pair of spring-actuated wings in hinged relation. to the nipple and on opposite sides thereof and extending beyond its end opening and spread connect with an oil hole normally in closed relation, projections on the wings, an oil feeder having a conical discharge end and wedges on the oil feeder extending substantially beyond its discharge end and adapted, as the feeder is moved longitudinally toward the nipple, to enga said wings and spread them apart as t e comcal end of the feeder approaches the conical end of the I 8. A lubricator oi'l hole to an oil container comprising a nip ple, a feed tube movable toward the nipple, a longitudinally split cover extending beyond the inlet end of the nipple and normally closing the same, and a cover opener I beyond the front of the feed tube and adapted, as :the feed tube is moved toward the nipple longitudithe feed tube and nipple, to spread apart the parts the feed tube is engaged with the nipple, In testimonyof-which invention, 1 have hereunto set my hand, atvon this l3thj day of A ril, 1920.

ELEUTHERE vRAUL ct 'P TJNT.

nipple.

connection for joining an of the cover before -Wilmington, Del, 

